Thermostatic valve.



J. W. BARTON.V

'IHERMOSTATIC VALVE. APPLOATION FILED IEB. 1a, 1912.

Patented Mar. 11, 1913.

m77? e .5565 @f5-ff@ h www AsmNGTON n c JOHN W. BARTON, 0F CLEVELAND, OHIO.

THERMOSTATIC VALVE.

Specification of Letters Patent.

Patented Mar. 11, 1913.

Application filed February 19, 1912. Serial No. 678,536.

To all whom, t may concern.'

Be it known that I, JOHN W. BARTON, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvement-s in Thermostatie Valves, of which the following is a specification.

This invention relates to thermostatic valves, and has for its object to provide an improved valve of that type, especially adapted for use on radiators or heating systems, to permit the exhaust of condensation under any pressure.

The arrangement is such that the expansion member is subject to the temperature oi' vapor or exhaust after the same passes through the valve, in other words, no steam can reach the expansion member until it has first passed the valve, and when this occurs the valve will close in consequence oit the operation ot' the expansion rod.

The invention is illustrated in the accompanying drawing in which- Figure l is a section of the valve. Fig. 2 is a side elevation partly broken away.

Referring specifically to the drawing, the angular valve body X has an inlet at I and an outlet at O, the inlet communicating with a cylindrical passage or part Y which extends across the valve body and which has at its upper side the valve opening or seat A. This passage or part is depressed as shown at K, so that the seat is about on a level with the lower part of the inlet, and all condensation will collect in the depression K directly under the valve. A clean out plug P, at the end ot' said passage, permits cleaning of the valve without removing the bonnet which is indicated at Z and which is screwed into the top of the body.

The valve disk is indicated at B and has a cylindrical boss or projection B on the top thereof. The valve opening communicates with the outlet through passages cored in the valve body on opposite sides ot the part Y. The bonnet has a cylindrical part Z which depends into the body and into the lower end of which the projection B tits, thus 'forming a guide for the valve disk and acting to hold it in proper position.

The disk is supported normally in open position by means of springs D, connected to a rod C extending through the disk and to screw eyes E in the bonnet. The bonnet is extended to form a tube containing the expansion rod l" which presses at its lower end against the valve disk, and which is lthreaded at its upper end for adjustment in the threaded part G of the tube.

H is a screw cap in the top of the tube. Port. holes S are provided for the purpose ot' permitting steam to enter freely into tube which incloses expansion rod F.

Ordinarily, with the valve open, the water o't condensation will flow through the valve opening and escape through the outlet. When steam begins to pass it will heat the parts o1 the valve structure above the valve seat and the heat being communicated to the rod l" will expand the same, thereby pressing` the disk against the seat and closing the valve, and it will remain closed until the condensation cools the expansible rod which will then contract, permitting the springs l) to open the valve.

The valve disk lnay be readily renewed without disturbing the rod, by removing the bonnet and replacing the disk.

l. claim:

l. A thermostatic valve comprising a body having an inlet and an outlet and a valve sait therebetween, a bonnet on the body, a valve member controlling the main passage through said valve and located on the outlet side of the valve seat and adapted to close against the seat, a spring connecting the bonnet and valve member and adapted to open the latter, and an expansible rod supported in the bonnet on the outlet side oi the valve and bearing against the said` member.

2. A thermostatie valve comprising a body having an inlet and an outlet and a cross passage communicatingl with said inlet, said cross passage being spaced from the sides of the body within the same and having a valve opening and seat at the top, said valve opening being below the level of the inlet, whereby condensation on the inlet side ot' the valve will collect in said passage, a bonnet on the valve body having a tubular extension, an expansion rod supported in the valve seat when the expansion rod oonsaid extension and located opposite to the tracts. 10 valve seat, and on the outlet side thereof, zt In testimony whereof, I do aiX my sigvalve disk bet-Ween the lower end of the eX- nature in presence of two Witnesses.

pension iod and the seat and adapted to be JOHN 7. BARTON. closed by said rod against the said seat, fitnessesz and springs connecting the disk to the bon- JOHN A. BOMMHARDT,

net and adapted to Withdraw said disk from STEDMAN J. ROCKWELL.

Copies of this patent may be obtained for ive cents each, by addressing the Commissioner of Patents, Washington, D. C. 

